Nonlinear dynamics of polar regions in paraelectric phase of (Ba1-x,Srx)TiO3 ceramics

Abstract

The dynamic dielectric nonlinearity of barium strontium titanate (Ba1-x,Srx)TiO3 ceramics is investigated in their paraelectric phase. With the goal to contribute to the identification of the mechanisms that govern the dielectric nonlinearity in this family, we analyze the amplitude and the phase angles of the first and the third harmonics of polarization. Our study shows that an interpretation of the field-dependent polarization in paraelectric (Ba1-x,Srx)TiO3 ceramics in terms of the Rayleigh-type dynamics is inadequate for our samples and that their nonlinear response rather resembles that observed in canonical relaxor Pb(Mg1/3Nb2/3)O3.

published in: Sina Hashemizadeh and Dragan Damjanovic, Applied Physics Letters 110 (19), 192905 (2017)

References in corpus (2)

• Hardening-softening transition in Fe-doped Pb(Zr,Ti)O3 ceramics and evolution of the third harmonic of the polarization response
• Room temperature surface piezoelectricity in SrTiO3 ceramics via piezoresponse force microscopy

Cited by in corpus (4)

• Dielectric and electro-mechanic nonlinearities in perovskite oxide ferroelectrics, relaxors and relaxor ferroelectrics
• Macroscopic polarization in the nominally ergodic relaxor state of lead magnesium niobate
• Subcoercive-field dielectric response of $0.5({\text{Ba}}_{0.7}{\text{Ca}}_{0.3}{\text{TiO}}_3)-0.5({\text{BaZr}}_{0.2}{\text{Ti}}_{0.8}{\text{O}}_3)$ thin film: peculiar third harmonic signature of phase transitions and residual ferroelectricity
• Atomic scale symmetry and polar nanoclusters in the paraelectric phase of ferroelectric materials